LOWER LAYER OR TOP LAYER OF MULTI-LAYER WELD OF TURBINE ROTOR OUT OF HIGH-CHROME STEEL, MATERIAL FOR DEPOSITION BY WELDING OF MULTI-LAYER WELD AND METHOD OF MANUFACTURING OF MULTI-LAYER WELD Russian patent published in 2016 - IPC B23K35/30 B23K9/04 C22C38/00 F01D25/00 

FIELD: metallurgy.

SUBSTANCE: multilayer weld made at section of surface of turbine rotor out of high-chromium steel in contact with bearing, containing bottom and top deposited layers, at that bottom deposited layer contains in wt %: C from 0.05 to 0.2, Si from 0.1 to 1.0, Mn from 0.3 to 1.5, Cr from 4.0 to below 6.5, Mo from 0.5 to 1.5, Fe and inevitable admixtures - rest. Welding consumables are described for deposition of bottom and top layers, as well as method of multilayer weld production.

EFFECT: multilayer weld is characterised by low sensitivity for cracking during annealing for internal stresses removal of the bottom layer.

9 cl, 5 dwg, 10 tbl, 6 ex